A visual inspection device for pipe joints

Abstract

The present invention relates to a visual inspection device for pipe joints, comprising a visual inspection workbench, a rotating workbench is arranged in the middle of the upper end of the visual inspection workbench, a circular turntable is arranged on the top of the rotating workbench, a circular transparent bearing plate is fixedly connected to the upper sleeve of the positioning inner retaining ring, the outer ring of the transparent bearing plate extends out of the outer wall of the rotating workbench, and the inner ring abuts against the upper end surface of the rotating workbench; a cleaning mechanism is arranged on one side of the transparent bearing plate; the cleaning mechanism comprises a T-shaped support seat, the bottom of the support seat is fixedly connected to the visual inspection workbench, and the upper part is fixedly connected with two groups of upper and lower opposite scraping components, and the two groups of scraping components are respectively arranged on the upper and lower sides of the transparent bearing plate. The device is provided with an annular transparent bearing plate and cooperates with the turntable to realize the movement of the pipe joint between various workstations, the bottom of the pipe joint can be detected through the transparent bearing plate, and a cleaning structure is arranged on the transparent bearing plate to keep the transparent bearing plate clean.

Description

Technical field:

[0001] The invention relates to the technical field of pipe joint detection, and more particularly to a visual detection device for pipe joints. Background technology:

[0002] In the prior art, the quality inspection of pipe joints is mostly done by the naked eye of quality inspectors, and its accuracy is difficult to guarantee. Due to errors in the naked eye or fatigue from long-term quality inspection, defective products are easily missed, which is not conducive to ensuring product quality. In order to solve the problem of manual errors, some pipe joints are inspected by visual inspection equipment. The visual inspection equipment mainly uses industrial cameras to take multi-angle photos of the pipe joints, and then compares them with the structure of standard parts to determine whether the inspected pipe joints are qualified;

[0003] The multi-angle shooting includes the opposite direction of looking down, the oblique direction and the horizontal direction. The horizontal direction can detect the outer wall of the pipe joint, the opposite direction of looking down can detect the upper end face of the pipe joint, and the oblique direction is an auxiliary detection. The detection items include the upper end face and the outer wall of the pipe joint; but the lower end face of the pipe joint is not detected, so the existing visual inspection is provided with a structure for flipping the pipe joint, which can realize the change of the lower end face of the pipe joint into the upper end face, and then perform visual inspection again; but the visual inspection structure is relatively complicated, so some people suggest that there is no need for a flipping structure, and a transparent pallet is used to support the pipe joint. The industrial camera can detect the bottom of the pipe joint through the transparent pallet, but in the inspection process, in order to avoid the workpiece being inspected from contaminating the transparent pallet, a structure for cleaning the transparent pallet needs to be designed. Summary of the invention:

[0004] The purpose of the present invention is to address the deficiencies of the prior art and to provide a visual inspection device for a pipe joint, which is provided with an annular transparent carrying plate and a turntable to enable the pipe joint to be moved between various workstations. The bottom of the pipe joint can be inspected through the transparent carrying plate, and a cleaning structure is provided on the transparent carrying plate to keep the transparent carrying plate clean, thereby not affecting the visual inspection results.

[0005] A visual inspection device for a pipe joint comprises a visual inspection workbench, a rotating workbench is arranged in the middle of the upper end of the visual inspection workbench, a circular turntable is arranged on the top of the rotating workbench, a circular ring-shaped positioning inner retaining ring is formed on the turntable of the rotating workbench, a circular ring-shaped transparent bearing plate is fixedly connected to the positioning inner retaining ring by a sleeve, the outer ring of the transparent bearing plate extends out of the outer wall of the rotating workbench, and the inner ring abuts against the upper end surface of the rotating workbench; a cleaning mechanism is arranged on one side of the transparent bearing plate;

[0006] The cleaning mechanism comprises a T-shaped support base, the bottom of which is fixedly connected to the visual inspection workbench, and the upper part of which is fixedly connected to two sets of upper and lower opposing scraping components, the two sets of scraping components are respectively arranged on the upper and lower sides of the transparent carrier plate;

[0007] The scraping assembly includes a plug-in seat fixedly connected to the support seat and in a horizontal position, a horizontal support arm is plugged and fixed on the plug-in seat, the ends of the support arm are located above and below the outer ring of the transparent bearing plate and are fixedly connected to an angle adjustment seat with a circular arc longitudinal section, an angle adjustment block with a D-shaped longitudinal section is inserted in the angle adjustment seat, a plurality of pressing teeth are formed on the circular arc outer wall of the angle adjustment block, and the pressing teeth are pressed against the inner wall of the angle adjustment seat; the outer side of the flat surface of the angle adjustment block is located at the notch of the angle adjustment seat and is formed with a longitudinal dovetail groove;

[0008] The angle adjustment block is connected to an inclined scraper, which consists of a frame and a conical rubber scraper strip. A dovetail strip is formed on the frame, and the dovetail strip is inserted into the dovetail groove of the angle adjustment block. An inclined connecting plate is formed on the side of the frame away from the dovetail strip. The rubber scraper strip sleeve is fixed on the connecting plate. The outer walls on both sides of the rubber scraper strip are formed with ridges with triangular cross-sections. The end of the rubber scraper strip and the ridges on one side of the rubber scraper strip are pressed against the upper and lower end surfaces of the transparent supporting plate respectively.

[0009] Preferably, the length of the angle adjustment block is smaller than the length of the angle adjustment seat, an arc-shaped retaining ring is formed at one end of the angle adjustment seat, an end face of one end of the angle adjustment block abuts against the retaining ring of the angle adjustment seat, and a support ear is formed at the other end; an arc-shaped angle adjustment groove is formed on the outer wall of the angle adjustment seat close to the support ear, a screw is inserted into the angle adjustment groove, the screw is threaded on the support ear, and the head of the screw presses against the outer wall of the angle adjustment seat;

[0010] A countersunk hole is formed on the dovetail bar of the frame, and the end of the screw is inserted into the countersunk hole of the dovetail bar.

[0011] Preferably, a plurality of grooves are formed on the rubber scraper strip on the upper side of the transparent supporting plate, and a plurality of comb strips are formed at one end of the rubber scraper strip divided by the grooves, and the comb strips are distributed above the outer ring of the transparent supporting plate;

[0012] The connecting plate at the comb strip is formed with an avoidance opening.

[0013] Preferably, the upper and lower end surfaces of the socket are respectively formed with relative guide grooves, and positioning bolts are inserted into the guide grooves, and the positioning bolts are threaded on the support arm.

[0014] Preferably, a material unloading mechanism is fixedly connected to the side wall of the socket on the upper side of the transparent supporting plate, and the material unloading mechanism includes a material unloading baffle plate with one end fixedly connected to the socket and inclined, and an L-shaped bracket plate is formed at the other end of the material unloading baffle plate, and the bracket plate is fixedly connected to the side wall of the socket.

[0015] Preferably, an inclined side baffle is inserted and fixed in the bracket plate, and a vertical and triangular cavity is formed around the side baffle and the bracket plate. A horizontal sealing partition is inserted and fixed in the cavity, and the sealing partition separates the cavity into an upper chamber and a lower chamber. A triangular sponge block is inserted and fixed in the lower chamber, and the lower end surface of the sponge block abuts against the upper end surface of the transparent carrier plate;

[0016] A plurality of small holes are formed on the sealing partition, and the upper chamber on the upper side of the sealing partition is filled with cleaning liquid.

[0017] Preferably, the lower end surface of the bracket plate, the lower end surface of the material discharge baffle and the lower end surface of the side baffle are flush, and the lower end surface of the sponge block is located at the lower side of the bracket plate; the upper end surface of the bracket plate is flush with the upper end surface of the side baffle.

[0018] The beneficial effects of the present invention are:

[0019] The device is provided with an annular transparent carrying plate and a turntable to realize the movement of the pipe joint between various workstations. The bottom of the pipe joint can be detected through the transparent carrying plate. In addition, a cleaning structure is provided on the transparent carrying plate to keep the transparent carrying plate clean, thereby not affecting the visual inspection results. Description of the drawings:

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the present invention from a top view;

[0022] Figure 3 It is a structural schematic diagram of the present invention;

[0023] Figure 4 Based Figure 1 A local enlarged schematic diagram of the middle A;

[0024] Figure 5 Based Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism in the present invention.

[0026] In the figure: 1. Visual inspection workbench; 2. Rotating workbench; 3. Transparent carrying plate; 4. Cleaning mechanism; 5. Unloading mechanism. Specific implementation method:

[0027] Example: See Figures 1 to 6As shown, a visual inspection device for a pipe joint comprises a visual inspection workbench 1, a rotating workbench 2 is arranged in the middle of the upper end of the visual inspection workbench 1, a circular turntable is arranged on the top of the rotating workbench 2, a circular ring-shaped positioning inner retaining ring 21 is formed on the turntable of the rotating workbench 2, a circular ring-shaped transparent bearing plate 3 is inserted and fixedly connected to the positioning inner retaining ring 21, the outer ring of the transparent bearing plate 3 extends out of the outer wall of the rotating workbench 2, and the inner ring abuts against the upper end surface of the rotating workbench 2; a cleaning mechanism 4 is arranged on one side of the transparent bearing plate 3;

[0028] The cleaning mechanism 4 comprises a T-shaped support base 41, the bottom of the support base 41 is fixedly connected to the visual inspection workbench 1, and the upper part thereof is fixedly connected with two sets of upper and lower opposing scraping components 42, and the two sets of scraping components 42 are respectively arranged on the upper and lower sides of the transparent carrier plate 3;

[0029] The scraping assembly 42 includes a plug-in seat 421 fixedly connected to the support seat 41 and in a horizontal state, a horizontal support arm 422 is plugged and fixed on the plug-in seat 421, the ends of the support arm 422 are located above and below the outer circle of the transparent carrier plate 3 and are fixedly connected to an angle adjustment seat 423 with a circular arc longitudinal section, an angle adjustment block 424 with a D-shaped longitudinal section is inserted in the angle adjustment seat 423, a plurality of pressing teeth 4241 are formed on the circular arc outer wall of the angle adjustment block 424, and the pressing teeth 4241 are pressed against the inner wall of the angle adjustment seat 423; the outer side of the plane of the angle adjustment block 424 is located at the notch of the angle adjustment seat 423 and is formed with a longitudinal dovetail groove 4242;

[0030] The angle adjustment block 424 is connected to an inclined scraper, which consists of a skeleton 425 and a conical rubber scraper strip 426. A dovetail strip 4521 is formed on the skeleton 425, and the dovetail strip 4521 is inserted into the dovetail groove 4242 of the angle adjustment block 424. An inclined connecting plate 4252 is formed on the side of the skeleton 425 away from the dovetail strip 4521. The rubber scraper strip 426 is fixed on the connecting plate 4252 by a sleeve. The outer walls on both sides of the rubber scraper strip 426 are formed with ridges 4261 with a triangular cross-section. The end of the rubber scraper strip 426 and the ridges 4261 on one side of the rubber scraper strip 426 are pressed against the upper and lower end surfaces of the transparent supporting plate 3 respectively.

[0031] The length of the angle adjustment block 424 is smaller than that of the angle adjustment seat 423. An arc-shaped retaining ring is formed at one end of the angle adjustment seat 423. The end surface of one end of the angle adjustment block 424 abuts against the retaining ring of the angle adjustment seat 423, and a support ear 4243 is formed at the other end. An arc-shaped angle adjustment groove 4231 is formed on the outer wall of the angle adjustment seat 423 close to the support ear 4243. A screw 427 is inserted into the angle adjustment groove 4231. The screw 427 is screwed on the support ear 4243, and the head of the screw 427 presses against the outer wall of the angle adjustment seat 423.

[0032] The dovetail bar 4521 of the frame 425 is formed with a countersunk hole, and the end of the screw 427 is inserted into the countersunk hole of the dovetail bar 4521. The screw 427 can locate the angle of the angle adjustment seat 423 and limit the axial movement of the rubber scraper 426.

[0033] A plurality of grooves are formed on the rubber scraper strip 426 on the upper side of the transparent supporting plate 3, and a plurality of comb strips 4262 are formed at one end of the rubber scraper strip 426 divided by the grooves. The comb strips 4262 are distributed above the outer ring of the transparent supporting plate 3; the comb strips 4262 can be pressed against the outer wall of the outer ring of the transparent supporting plate 3 to clean the outer wall of the transparent supporting plate 3.

[0034] An avoidance opening 4253 is formed on the connecting plate 4252 at the comb strip 4262 .

[0035] The upper and lower end surfaces of the socket 421 are respectively formed with relative guide grooves 4211, and positioning bolts 428 are inserted into the guide grooves 4211. The positioning bolts 428 are screwed on the support arm 422, and the horizontal position of the rubber scraper 426 on the scraping component 42 can be adjusted.

[0036] A material unloading mechanism 5 is fixedly connected to the side wall of the plug-in socket 421 on the upper side of the transparent supporting plate 3, and the material unloading mechanism 5 includes a material unloading baffle 51 which is fixedly connected to the plug-in socket 421 at one end and is inclined, and an L-shaped bracket plate 511 is formed at the other end of the material unloading baffle 51, and the bracket plate 511 is fixedly connected to the side wall of the plug-in socket 421; when the transparent supporting plate 3 rotates with the rotating workbench 2, the pipe joint abuts against the material unloading baffle 51, and with the rotation of the transparent supporting plate 3, the pipe joint can move outward along the material unloading baffle 51 to separate from the transparent supporting plate 3, and fall after separating from the transparent supporting plate 3, so as to realize material unloading (an inclined material channel can be set at the falling position, and the output of the pipe joint is realized through the material channel).

[0037] The support plate 511 is plugged and fixed with an inclined side baffle 52, and the side baffle 52 and the support plate 511 surround a vertical and triangular cavity, and a horizontal sealing partition 53 is plugged and fixed in the cavity, and the sealing partition 53 separates the cavity into an upper chamber and a lower chamber, and a triangular sponge block 54 is plugged and fixed in the lower chamber, and the lower end surface of the sponge block 54 abuts against the upper end surface of the transparent carrier plate 3;

[0038] The sealing baffle 53 is formed with a plurality of small holes 531 , and the upper chamber on the upper side of the sealing baffle 53 is filled with cleaning liquid; the cleaning liquid can be coated on the upper surface of the transparent supporting plate 3 through the sponge block 54 to improve the cleaning effect.

[0039] The lower end surface of the support plate 511 , the lower end surface of the unloading baffle 51 and the lower end surface of the side baffle 52 are flush with each other, and the lower end surface of the sponge block 54 is located at the lower side of the support plate 511 ; the upper end surface of the support plate 511 and the upper end surface of the side baffle 52 are flush with each other.

[0040] A plurality of arc-shaped positioning protrusions 22 are formed on the outer wall of the positioning inner retaining ring 21 , and the positioning protrusions 22 are inserted into the inner ring of the transparent supporting plate 3 .

[0041] Working principle: The present invention is a visual inspection device for pipe joints. The structure of the visual inspection device is shown in the figure. A ring-shaped transparent carrier plate 3 is installed on the outer ring of the rotating worktable 2. The pipe joint can be placed on the transparent carrier plate 3. An industrial camera facing the bottom of the pipe joint can be arranged below the transparent carrier plate 3. The bottom of the pipe joint can be inspected through the transparent carrier plate 3.

[0042] Because there may be oil stains on the pipe joint, which will cause contamination on the upper surface of the transparent carrier plate 3, and the oil stains will affect the visual inspection of the bottom of the pipe joint, a cleaning mechanism 4 is added, and the rubber scraper 426 on the cleaning mechanism 4 can scrape off the oil stains on the transparent carrier plate 3, thereby preventing the oil stains from affecting the inspection results.

[0043] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore, the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A visual inspection device for a pipe joint, comprising a visual inspection workbench (1), a rotating workbench (2) is arranged in the middle of the upper end of the visual inspection workbench (1), and a circular turntable is arranged on the top of the rotating workbench (2), characterized in that: A circular ring-shaped positioning inner retaining ring (21) is formed on the turntable of the rotary table (2), and a circular ring-shaped transparent bearing plate (3) is inserted and fixedly connected to the positioning inner retaining ring (21), the outer ring of the transparent bearing plate (3) extends out of the outer wall of the rotary table (2), and the inner ring abuts against the upper end surface of the rotary table (2); a cleaning mechanism (4) is provided on one side of the transparent bearing plate (3), and an industrial camera facing the bottom of the pipe joint is provided below the transparent bearing plate (3); The cleaning mechanism (4) comprises a T-shaped support seat (41), the bottom of the support seat (41) is fixedly connected to the visual inspection workbench (1), and the upper part is fixedly connected with two groups of upper and lower opposing scraping components (42), and the two groups of scraping components (42) are respectively arranged on the upper and lower sides of the transparent carrier plate (3); The scraping assembly (42) comprises a plug-in seat (421) fixedly connected to the support seat (41) and in a horizontal position, a horizontal support arm (422) being plugged and fixedly connected to the plug-in seat (421), the ends of the support arm (422) being located above and below the outer ring of the transparent supporting plate (3) and being fixedly connected to an angle adjustment seat (423) having a circular arc-shaped longitudinal section, an angle adjustment block (424) having a D-shaped longitudinal section being inserted into the angle adjustment seat (423), a plurality of pressing teeth (4241) being formed on the circular arc-shaped outer wall of the angle adjustment block (424), and the pressing teeth (4241) being pressed against the inner wall of the angle adjustment seat (423); the planar outer side of the angle adjustment block (424) being located at the notch of the angle adjustment seat (423) and being formed with a longitudinal dovetail groove (4242); The angle adjustment block (424) is connected to an inclined scraper, which is composed of a frame (425) and a conical rubber scraper strip (426). A dovetail strip (4521) is formed on the frame (425), and the dovetail strip (4521) is inserted into a dovetail groove (4242) of the angle adjustment block (424). An inclined connecting plate (4252) is formed on the side of the frame (425) away from the dovetail strip (4521). The rubber scraper strip (426) is inserted and fixed on the connecting plate (4252). The outer walls on both sides of the rubber scraper strip (426) are formed with ridges (4261) with a triangular cross section. The end of the rubber scraper strip (426) and the ridges (4261) on one side of the rubber scraper strip (426) are pressed against the upper and lower end surfaces of the transparent supporting plate (3) respectively.

2. A visual inspection device for a pipe joint according to claim 1, characterized in that: The length of the angle adjustment block (424) is smaller than the length of the angle adjustment seat (423); a circular arc-shaped retaining ring is formed at one end of the angle adjustment seat (423); an end surface of one end of the angle adjustment block (424) abuts against the retaining ring of the angle adjustment seat (423); and a support ear (4243) is formed at the other end; an arc-shaped angle adjustment groove (4231) is formed on the outer wall of the angle adjustment seat (423) on the side close to the support ear (4243); a screw (427) is inserted into the angle adjustment groove (4231); the screw (427) is screwed onto the support ear (4243); and the head of the screw (427) presses against the outer wall of the angle adjustment seat (423); A countersunk hole is formed on the dovetail bar (4521) of the frame (425), and the end of the screw (427) is inserted into the countersunk hole of the dovetail bar (4521).

3. A visual inspection device for a pipe joint according to claim 1, characterized in that: A plurality of grooves are formed on the rubber scraper strip (426) on the upper side of the transparent carrier plate (3), and a plurality of comb strips (4262) are formed at one end of the rubber scraper strip (426) divided by the grooves, and the comb strips (4262) are distributed above the outer circle of the transparent carrier plate (3); An avoidance opening (4253) is formed on the connecting plate (4252) at the comb strip (4262).

4. A visual inspection device for a pipe joint according to claim 1, characterized in that: The upper and lower end surfaces of the plug-in seat (421) are respectively formed with opposite guide grooves (4211), and positioning bolts (428) are inserted into the guide grooves (4211), and the positioning bolts (428) are screwed onto the support arm (422).

5. A visual inspection device for a pipe joint according to claim 1, characterized in that: A material discharge mechanism (5) is fixedly connected to the side wall of the plug socket (421) on the upper side of the transparent supporting plate (3), and the material discharge mechanism (5) comprises a material discharge baffle (51) fixedly connected to the plug socket (421) at one end and arranged obliquely, and an L-shaped bracket plate (511) is formed at the other end of the material discharge baffle (51), and the bracket plate (511) is fixedly connected to the side wall of the plug socket (421).

6. A visual inspection device for a pipe joint according to claim 5, characterized in that: An inclined side baffle (52) is inserted and fixed in the support plate (511), and a vertical and triangular cavity is formed by the side baffle (52) and the support plate (511). A horizontal sealing partition (53) is inserted and fixed in the cavity, and the sealing partition (53) separates the cavity into an upper chamber and a lower chamber. A triangular sponge block (54) is inserted and fixed in the lower chamber, and the lower end surface of the sponge block (54) abuts against the upper end surface of the transparent supporting plate (3); A plurality of small holes (531) are formed on the sealing baffle (53), and the upper chamber on the upper side of the sealing baffle (53) is filled with cleaning liquid.

7. A visual inspection device for a pipe joint according to claim 6, characterized in that: The lower end surface of the support plate (511), the lower end surface of the material removal baffle (51) and the lower end surface of the side baffle (52) are flush with each other, and the lower end surface of the sponge block (54) is located on the lower side of the support plate (511); the upper end surface of the support plate (511) and the upper end surface of the side baffle (52) are flush with each other.

Images